import time
from datetime import datetime, timedelta

from flask import render_template, request, current_app, session, redirect, url_for, g, jsonify, abort

from info import constants, db
from info.models import User, News, Category
from info.utils.common import user_login_data
from info.utils.image_storage import storage
from info.utils.response_code import RET
from . import admin_blu

@admin_blu.route('/login',methods=['GET','POST'])
def login():
    if(request.method == 'GET'):
        # 判断当前是否有登陆，如果有登陆直接重定向到管理员后台
        user_id = session.get('user_id',None)
        is_admin = session.get('is_admin',False)
        if user_id and is_admin:
            return redirect(url_for('admin.index'))
        return render_template('admin/login.html')

    # 取到登录参数
    username = request.form.get('username')
    password = request.form.get('password')
    if not all([username,password]):
        return render_template('admin/login.html',errmsg='参数错误')

    # 查询当前用户
    try:
        user = User.query.filter(User.mobile == username ,User.is_admin == True).first()
    except Exception as e:
        current_app.logger.error(e)
        return render_template('admin/login.html', errmsg='用户信息查询失败')

    if not user:
        return render_template('admin/login.html', errmsg='未查询到用户信息')

    if not user.check_password(password):
        return render_template('admin/login.html', errmsg='用户名或密码错误')

    # 保存用户的登录信息
    session['user_id'] = user.id
    session['mobile'] = user.mobile
    session['nick_name'] = user.nick_name
    session['is_admin'] = user.is_admin

    return redirect(url_for('admin.index'))

@admin_blu.route('/index')
@user_login_data
def index():
    user = g.user
    return render_template('admin/index.html',user=user.to_dict())

@admin_blu.route('/user_count')
def user_count():
    total_count = 0
    try:
        total_count = User.query.filter(User.is_admin == False).count()
    except Exception as e:
        current_app.logger.error(e)

    mon_count = 0
    t = time.localtime()
    begin_mon_date = datetime.strptime(('%d-%02d-01'%(t.tm_year,t.tm_mon)),'%Y-%m-%d')
    try:
        mon_count = User.query.filter(User.is_admin == False,User.create_time > begin_mon_date).count()
    except Exception as e:
        current_app.logger.error(e)

    day_count = 0
    begin_day_date = datetime.strptime(('%d-%02d-%02d'%(t.tm_year,t.tm_mon,t.tm_mday)),'%Y-%m-%d')
    try:
        day_count = User.query.filter(User.is_admin == False,User.create_time > begin_day_date).count()
    except Exception as e:
        current_app.logger.error(e)

    active_time = []
    active_count = []

    today_date = datetime.strptime(('%d-%02d-%02d'%(t.tm_year,t.tm_mon,t.tm_mday)),'%Y-%m-%d')
    for i in range(31):
        begin_date = today_date - timedelta(days=i)
        end_date = today_date - timedelta(days=(i-1))
        count = User.query.filter(User.is_admin == False,User.last_login >= begin_date,User.last_login<=end_date).count()
        active_count.append(count)
        active_time.append(begin_date.strftime('%Y-%m-%d'))

    active_time.reverse()
    active_count.reverse()

    data = {
        "total_count":total_count,
        "mon_count":mon_count,
        "day_count":day_count,
        "active_count":active_count,
        "active_time":active_time
    }

    return render_template('admin/user_count.html',data=data)


@admin_blu.route('/user_list')
def user_list():
    page = request.args.get('page',1)

    try:
        page = int(page)
    except Exception as e:
        current_app.logger.error(e)
        page = 1

    user_list = []
    total_page = 1

    try:
        users = User.query.filter(User.is_admin == False).paginate(page,constants.ADMIN_USER_PAGE_MAX_COUNT)
        total_page = users.pages
        user_list = users.items
    except Exception as e:
        current_app.logger.error(e)

    user_dict_li = []
    for user in user_list:
        user_dict_li.append(user.to_admin_dict())
    data = {
        "user_dict_li":user_dict_li,
        "page":page,
        "total_page":total_page
    }
    print(data)
    return render_template('admin/user_list.html',data=data)


@admin_blu.route('/review_list')
def review_list():
    page = request.args.get('page',1)
    keywords = request.args.get('keyword')
    try:
        page= int(page)
    except Exception as e:
        current_app.logger.error(e)
        page = 1

    news_list = []
    total_pages = 1

    filters = [News.status != 0]
    if keywords:
        filters.append(News.title.contains(keywords))

    try:
        paginate = News.query.filter(*filters).order_by(News.create_time).paginate(page,constants.ADMIN_NEWS_PAGE_MAX_COUNT)
        news_list = paginate.items
        total_pages = paginate.pages
    except Exception as e:
        current_app.logger.error(e)

    news_dict_li = []
    for news in news_list:
        news_dict_li.append(news.to_review_dict())

    data = {
        "page":page,
        "total_pages":total_pages,
        "news_dict_li":news_dict_li
    }
    return render_template('admin/news_review.html',data=data)


@admin_blu.route('/news_review_detail/<int:news_id>')
def news_review_detail(news_id):
    # print(news_id)
    news = None
    try:
        news = News.query.get(news_id)
        # print(news)
    except Exception as e :
        current_app.logger.error(e)
    if not news:
        return render_template('admin/news_review_detail.html', data={"errmsg":'未查询到新闻'})

    data = {
        "news":news.to_dict()
    }
    return render_template('admin/news_review_detail.html',data=data)

@admin_blu.route('/check_news',methods=['POST'])
def check_news():
    action = request.json.get('action')
    news_id = request.json.get('news_id')
    reason = request.json.get('reason')

    if not all([action,news_id]):
        return jsonify(errno=RET.PARAMERR,errmsg='参数错误')
    if action not in ('accept','reject'):
        return jsonify(errno=RET.PARAMERR, errmsg='参数错误')

    try:
        news = News.query.get(news_id)
    except Exception as e :
        current_app.logger.error(e)
        return jsonify(errno=RET.DBERR,errmsg='数据库查询错误')
    if not news:
        return jsonify(errno=RET.NODATA, errmsg='未查询到数据')

    if action == 'accept':
        news.status = 0
    #     return jsonify(errno=RET.OK,errmsg='ok')
    #
    # if not reason:
    #     return jsonify(errno=RET.PARAMERR,errmsg='参数错误')
    #
    # news.status = -1
    # news.reason = reason
    # return jsonify(errno=RET.OK, errmsg='ok')
    else:
        if not reason:
            return jsonify(errno=RET.PARAMERR, errmsg='参数错误')
        news.status = -1
        news.reason = reason
    return jsonify(errno=RET.OK, errmsg='ok')


@admin_blu.route('/news_edit')
def news_edit():
    page = request.args.get('page',1)
    keywords = request.args.get('keywords')

    try:
        page = int(page)
    except Exception as e:
        current_app.logger.error(e)
        page = 1

    news_list = []
    total_pages = 1

    filters = []
    if keywords:
        filters.append(News.title.contains(keywords))

    try:
        paginate = News.query.filter(*filters).paginate(page,constants.ADMIN_NEWS_PAGE_MAX_COUNT)
        news_list = paginate.items
        total_pages = paginate.pages
    except Exception as e:
        current_app.logger.error(e)

    news_dict_li = []
    for news in news_list:
        news_dict_li.append(news.to_dict())

    data = {
        "news_dict_li":news_dict_li,
        "page":page,
        "total_pages":total_pages
    }
    return render_template('admin/news_edit.html',data=data)


@admin_blu.route('/news_edit_detail',methods=['GET','POST'])
def news_edit_detail():

    if request.method == 'GET':
        news_id = request.args.get('news_id')
        if not news_id:
            abort(404)

        try:
            news_id = int(news_id)
        except Exception as e:
            return render_template('admin/news_edit_detail.html',errmsg='参数错误')

        news = None
        try:
            news = News.query.get(news_id)
            # print(news)
        except Exception as e:
            current_app.logger.error(e)
            return render_template('admin/news_edit_detail.html', errmsg='查询数据错误')

        if not news:
            return render_template('admin/news_edit_detail.html', data={"errmsg": '未查询到新闻'})

        category_list = None
        try:
            category_list = Category.query.all()
        except Exception as e:
            current_app.logger.error(e)
            return render_template('admin/news_edit_detail.html', errmsg='查询数据错误')

        category_dict_li = []
        for category in category_list:
            category = category.to_dict()
            if news.category_id == category.get('id'):
                category['is_selected'] = True
            category_dict_li.append(category)

        category_dict_li.pop(0)
        # category_list = Category.query.all()
        # category_dict_li = []
        # for category in category_list:
        #     category_dict_li.append(category.to_dict())
        data = {
            "news": news.to_dict(),
            "category_dict_li":category_dict_li
        }
        return render_template('admin/news_edit_detail.html', data=data)

    news_id = request.form.get('news_id')
    title = request.form.get('title')
    digest = request.form.get('digest')
    content = request.form.get('content')
    index_image = request.files.get('index_image')
    category_id = request.form.get('category_id')

    if not([title,digest,content,category_id]):
        return jsonify(errno=RET.PARAMERR, errmsg='参数错误')

    # news = None
    try:
        news = News.query.get(news_id)
        # print(news)
    except Exception as e:
        current_app.logger.error(e)
        # return render_template('admin/news_edit_detail.html', errmsg='查询数据错误')
        return jsonify(errno=RET.DBERR, errmsg='查询错误')
    if not news:
        return jsonify(errno=RET.NODATA, errmsg='未查询到此新闻')

    if index_image:
        try:
            index_image = index_image.read()
        except Exception as e:
            current_app.logger.error(e)
            return jsonify(errno=RET.PARAMERR, errmsg='参数错误')

        try:
            key = storage(index_image)
        except Exception as e:
            current_app.logger.error(e)
            return jsonify(errno=RET.THIRDERR, errmsg='上传错误')
        news.index_image_url = constants.QINIU_DOMIN_PREFIX+key

    news.title = title
    news.digest = digest
    news.category_id = category_id
    news.content = content

    return jsonify(errno=RET.OK,errmsg='ok')


@admin_blu.route('/news_type',methods=['GET','POST'])
def news_type():
    if request.method == 'GET':
        try:
            category_list = Category.query.all()
        except Exception as e:
            current_app.logger.error(e)
            return render_template('admin/news_type.html',errmsg='数据库查询失败')
        category_dict_li = []
        for category in category_list:
            category_dict_li.append(category.to_dict())
        category_dict_li.pop(0)
        data = {
            "category_dict_li":category_dict_li
        }
        return render_template('admin/news_type.html',data=data)

    category_name = request.json.get('name')
    category_id = request.json.get('id')
    print(category_name,category_id)

    if not category_name:
        return jsonify(errno=RET.PARAMERR, errmsg='参数错误')

    category = None
    if category_id:
        try:
            category_id = int(category_id)
            category = Category.query.get(category_id)
        except Exception as e:
            current_app.logger.error(e)
            return jsonify(errno=RET.PARAMERR, errmsg='参数错误')
        if not category:
            return jsonify(errno=RET.NODATA, errmsg='未查询到此类别')

        category.name = category_name
    else:
        category = Category()
        category.name = category_name
        db.session.add(category)
    return jsonify(errno=RET.OK, errmsg='OK')





















